[silgen] Add a helper called SILGenBuilder::emitCopyAddrOperation.

This works by emitting an object level copy_addr if an address type is
loadable (that is using load [take] + store [init] instead of copy_addr).

Author: gottesmm

lib/SILGen/SILGenBuilder.cpp

@@ -1001,3 +1001,10 @@ ManagedValue SILGenBuilder::emitCopyValueOperation(SILLocation loc,
     return value;
   return SGF.emitManagedRValueWithCleanup(cvi);
 }
+
+void SILGenBuilder::emitCopyAddrOperation(SILLocation loc, SILValue srcAddr,
+                                          SILValue destAddr, IsTake_t isTake,
+                                          IsInitialization_t isInitialize) {
+  auto &lowering = getTypeLowering(srcAddr->getType());
+  lowering.emitCopyInto(*this, loc, srcAddr, destAddr, isTake, isInitialize);
+}

lib/SILGen/SILGenBuilder.h

@@ -449,6 +449,10 @@ class SILGenBuilder : public SILBuilder {
 
   using SILBuilder::emitCopyValueOperation;
   ManagedValue emitCopyValueOperation(SILLocation Loc, ManagedValue v);
+
+  void emitCopyAddrOperation(SILLocation loc, SILValue srcAddr,
+                             SILValue destAddr, IsTake_t isTake,
+                             IsInitialization_t isInitialize);
 };
 
 } // namespace Lowering